22029894380 has 48 divisors (see below), whose sum is σ = 52752137760. Its totient is φ = 7655635968.

The previous prime is 22029894347. The next prime is 22029894401. The reversal of 22029894380 is 8349892022.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2487650 + ... + 2496489.

It is an arithmetic number, because the mean of its divisors is an integer number (1099002870).

Almost surely, 2^22029894380 is an apocalyptic number.

22029894380 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22029894380 is an abundant number, since it is smaller than the sum of its proper divisors (30722243380).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

22029894380 is a wasteful number, since it uses less digits than its factorization.

22029894380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4984178 (or 4984176 counting only the distinct ones).

The product of its (nonzero) digits is 497664, while the sum is 47.

The spelling of 22029894380 in words is "twenty-two billion, twenty-nine million, eight hundred ninety-four thousand, three hundred eighty".